听题解说__int128能过》

#include<iostream>
using namespace std;
typedef unsigned long long ll;
ll l,r,w;
inline void print(__int128 x){
    if(x > 9)
        print(x / 10);
    putchar(x % 10 + '0');
}
int main(){
//	cout<<"mx="<<mx<<'\n';
	cin>>l>>r>>w;
	if (l==1){
		cout<<"1 ";
		if (w==1) return 0;
	} else if (w>r){
		cout<<-1;
		return 0;
	}
	__int128 pre=1;
	while (pre*w<=r){	
		pre*=w;
		if (pre>=l) print(pre),putchar(' ');
	}
	return 0;
}